Experiencing childhood adversity can harm a child's heart health but positive experiences provide a buffer, according to a new study.
The research, led by Murdoch Children's Research Institute and published in the International Journal of Cardiology, found adverse experiences negatively impact childhood cardiovascular health yet positive ones had a beneficial effect and could prevent some of the damage caused by adversity.
For the study, data was sourced from the Longitudinal Study of Australian Children (LSAC), which tracked 5,107 babies from birth up to 12 years old age.
It found childhood adversity experienced from birth to 11 years, such as experiencing domestic violence and parental mental health illness, could lead to poor cardiovascular health later in childhood. Conversely, positive experiences like warm parenting and living in a safe living environment were linked to better heart health.
Positive experiences may also help explain why some children thrive among adversity, acting as a buffer to some of the possible negative flow on effects on cardiovascular health.
Cardiovascular disease is the leading cause of death worldwide, responsible for about one third of all deaths.
MCRI's Dr Jun Guo said the findings highlighted the importance of early life experiences to children's cardiovascular health, particularly the protective role of positive experiences.
He said public health programs, which focused on prevention and used evidence-based approaches, were needed to support all children and families.
"Promoting positive childhood experiences such as building healthy and safe communities, fostering strong family bonds and enhancing school and community engagement, are crucial to preventing future cardiovascular disease," Dr Guo said.
"This research shows that by investing in the early years, we can have healthier futures for all Australian children."
Publication: Shuaijun Guo, Rushani Wijesuriya, Meredith O'Connor, Margarita Moreno-Betancur, Sharon Goldfeld, David Burgner, Richard Liu and Naomi Priest. 'The effects of adverse and positive experiences on cardiovascular health in Australian children,' International Journal of Cardiology. DOI: S0167-5273(24)00884-2
Funding:
The study was supported by the Victorian Government's Operational Infrastructure Support Program and Murdoch Children's Research Institute Population Health Theme Funding for 2023. Dr. Guo is supported by Murdoch Children's Research Institute Population Health Theme Funding for 2023. Dr. O'Connor is supported by the Melbourne Children's LifeCourse initiative, funded by The Royal Children's Hospital Foundation Grant (2018-984). A/Prof Moreno-Betancur is supported by a National Health and Medical Research Council (NHMRC) Investigator Grant Emerging Leadership Level 2 (2009572). Prof Burgner is supported by an NHMRC Investigator Grant (1175744). Prof Goldfeld is supported by an NHMRC 2023 Investigator Grant (2026263).
